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JP-10 (fuel)
JP-10, or Jet Propellant-10, is a single-component high-energy-density hydrocarbon fuel made almost entirely of exo-tetrahydrodicyclopentadiene, developed by the US Air Force and Navy in 1978 for missiles.
JP-8
JP-8 (NATO designation F-34) is a kerosene-type jet fuel, essentially commercial Jet A-1 with additives, used by the United States military for aircraft and ground vehicles.
JPEG
JPEG (Joint Photographic Experts Group) is a standard method for lossy compression of still images, published in 1992, and the family of .jpg file formats carrying its data.
JPEG 2000
JPEG 2000 is an ISO/IEC 15444 standard for compressing digital images, published in 2000 as a successor to JPEG, using wavelet compression and widely used in digital cinema and archives.
JPEG File Interchange Format
JPEG File Format (JFIF) is a stripped-down file format designed to move JPEG bitstreams across many platforms and applications. It was published in 1992 as version 1.02.
JPEG XL
JPEG XL is a royalty-free still-image compression format, standardized as ISO/IEC 18181 in 2022, offering lossy and lossless coding and lossless recompression of existing JPEG files.
JQuery
jQuery is a JavaScript library created by John Resig in 2006 that simplifies HTML manipulation, event handling, animation, and Ajax; it remains the web's most widely used library.
JR Central
JR Central, formally the Central Japan Railway Company, is the Japanese railway company operating the Tokaido Shinkansen between Tokyo, Nagoya, and Osaka, established in 1987.
JSON
JSON, short for JavaScript Object Notation, is a lightweight text format for exchanging structured data between any programming languages, discovered by Douglas Crockford in 2001 and standardized as ECMA-404.
JSON Patch
JSON Patch is a format standardized as RFC 6902 in April 2013 for describing sequences of operations to apply to a JSON document, identified by the media type application/json-patch+json.
JSON Schema
JSON Schema is a vocabulary and specification for describing the structure of JSON data, asserting constraints on JSON values and standardized in the IETF as Draft 2020-12.
JSON Web Token
A JSON Web Token (JWT) is a compact, URL-safe format for representing claims about a user or application as a digitally signed or encrypted JSON object, defined by RFC 7519.
JSON-LD
JSON-LD, short for JavaScript Object Notation for Linked Data, is a W3C-standardized, JSON-based format for serializing Linked Data, standardized in 2014 and used on 55.9% of all websites as of October 2026.
JSON-RPC
JSON-RPC is a stateless, lightweight remote procedure call protocol using JSON as its data format, defined in version 2.0 and transport agnostic, running over HTTP, sockets, or message-passing environments.
JSON5
JSON5 is a data interchange format extending JSON with ECMAScript 5.1 syntax such as comments, unquoted keys, and single quotes, aimed at hand-written configuration files.
JSONP
JSONP (JSON with Padding) is a browser technique for reading cross-origin JSON by loading it as JavaScript through a script tag, proposed by Bob Ippolito in 2005.
JSONPath
JSONPath is a string syntax for selecting and extracting values from JSON documents, originally proposed in 2007 as "XPath for JSON" and standardized by the IETF in 2024.
JST connector
A JST connector is a small wire-to-board or wire-to-wire connector in the style of the Japanese manufacturer J.S.T. Mfg. Co., such as the PH, XH, and SH series.
JSTOR
JSTOR (short for Journal Storage) is a nonprofit digital library of academic journals, books, primary sources, and images, founded in 1995 as a Mellon Foundation project.
JSW Barmer Jalipa Kapurdi power station
The JSW Barmer Jalipa Kapurdi power station is a 1,080 MW lignite-fired thermal power plant at Bhadresh in Barmer district, Rajasthan, operated by JSW Energy.
JSW Energy
JSW Energy is an Indian independent power producer founded in 1994 as part of the JSW Group, generating electricity from thermal, hydro, wind, and solar sources.
JSW MG Motor India
JSW MG Motor India is an Indian automaker formed in 2023 as a joint venture between the JSW Group and China's SAIC Motor to sell MG vehicles.
JSW Vijayanagar Toranagallu power station
The JSW Vijayanagar Toranagallu power station is an 860 MW coal- and gas-fired thermal power plant at Toranagallu in Ballari district, Karnataka, India, owned and operated by JSW Energy.
JSX (airline)
JSX, formerly JetSuiteX, is an American public charter airline founded in 2016 and rebranded in 2019, selling individual seats on 30-seat Embraer jets from private terminals across the United States and Mexico.
JT-60
JT-60 is a series of large Japanese tokamak fusion research devices at Naka, Ibaraki Prefecture, operating since 1985, whose successor JT-60SA is the world's largest operating tokamak.
JT-60SA
JT-60SA, meaning JT-60 Super Advanced, is a fully superconducting tokamak in Naka, Japan, jointly built by Japan and Europe to complement ITER, achieving first plasma in 2023.
JTAG
JTAG, named for the Joint Test Action Group, is IEEE Std 1149.1, a 1990 standard that embeds test logic in integrated circuits so printed circuit boards can be tested and programmed.
JTEKT
JTEKT (ジェイテクト) is a Japanese manufacturing company headquartered in Nagoya that makes steering systems, bearings, and machine tools, formed in 2006 by merging Koyo Seiko and Toyoda Machine Works.
Ju Li
Ju Li (李巨) is a materials scientist and engineer who has been a professor at MIT since 2011, known for battery cathode design, nuclear materials, and AI-driven materials discovery.
Juan Bautista Antonelli
Juan Bautista Antonelli, or Battista Antonelli, was an Italian military engineer who, from 1585 to 1608, planned Spain's Caribbean defenses at Havana, Cartagena de Indias, and Santo Domingo.